Zerodur Broadband Metallic Mirrors
Zerodur Broadband Metallic Mirrors
Broadband metallic mirrors are excellent general purpose, broadband reflectors covering the UV, visible, and IR. The Zerodur substrate has a nominally zero thermal expansion. This extra stability can be critical for applications requiring diffraction limited performance.
- Four metallic coatings cover UV - IR spectral bands
- Substrate flatness & surface quality λ/5, 20-10 to λ/20, 10-2
- Available in diameter from 25.4 mm to 203.2 mm
- Zerodur substrate of nominally zero thermal expansion
- Broader bandwidth and less expensive than dielectric coatings
- Insensitive to polarization and angle of incidence See All Features
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | 10Z20AL.2 | |||||
| 10Z20ER.1 | |||||
| 10Z20ER.2 | |||||
 | 10Z20ER.4 | |||||
| 10Z40AL.2 | |||||
| 10Z40ER.1 | |||||
| 10Z40ER.2 | |||||
| 10Z40ER.4 | |||||
| 20Z20AL.2 | |||||
| 20Z20ER.1 | |||||
| 20Z20ER.2 | |||||
| 20Z20ER.4 | |||||
| 20Z40AL.2 | |||||
| 20Z40ER.1 | |||||
| 20Z40ER.2 | |||||
| 20Z40ER.4 | |||||
| 30Z20ER.1 | |||||
| 30Z20ER.2 | |||||
| 30Z20ER.4 | |||||
| 30Z40ER.1 | |||||
| 30Z40ER.2 | |||||
| 30Z40ER.4 | |||||
 | 40Z20ER.1 | |||||
| 40Z20ER.2 | |||||
| 40Z40AL.2 | |||||
| 40Z40ER.1 | |||||
| 40Z40ER.2 | |||||
| 60Z20ER.2 | |||||
| 60Z40AL.2 | |||||
| 60Z40ER.1 | |||||
| 60Z40ER.2 | |||||
| 80Z10ER.1 | |||||
| 80Z20AL.2 | |||||
| 80Z20ER.1 | |||||
| 80Z20ER.2 |
Specifications
- Wavelength Region250-600 nm, 450-700 nm, 480-20000 nm, 650-20000 nm
- Mirror ShapeRound
- Diameter25.4 mm, 50.8 mm, 76.2 mm, 101.6 mm, 152.4 mm, 203.2 mm
- Thickness6.0 mm, 12.7 mm, 14.7 mm, 17.7 mm, 23.5 mm, 29.5 mm
- MaterialZerodur
- Angle of Incidence0-45°
- Clear Aperture≥central 80% of diameter
- Cleaning
Features
Zerodur® Substrates
Zerodur® is a unique glass-ceramic material with a nearly zero coefficient of thermal expansion and excellent homogeneity of this coefficient throughout its entire piece. It is the best choice when extreme thermal stability is required or for environments with large temperature fluctuations. For more information, please see our Optical Materials technical note.
Enhanced Aluminum UV Coating
Our AL.2 UV enhanced aluminum coating is a durable, broadband UV reflector with average reflectivity greater than 90% from 250 – 600 nm. The aluminum film is overcoated with UV transparent magnesium fluoride to prevent oxidation of the metal.
Enhanced Aluminum VIS-NIR Coating
Our ER.1 enhanced aluminum coating may be used wherever a broadband visible and near infrared reflector is needed. A multilayer dielectric stack deposited over the aluminum film boosts reflectance and improves the durability of the coating. Average reflectivity is greater than 93% from 450-700 nm.
Protected Silver VIS-IR Coating
Our ER.2 protected silver coating is composed of a low emissivity silver film fully encapsulated by a multilayer dielectric stack to prevent oxidation. This coating has excellent broadband reflectivity in the IR, while maintaining very good performance in the visible and near IR. Average reflectivity is greater than 96% from 480 – 1100 nm and greater than 98.5% from 1.1 – 20 µm. This silver mirror is a favorite for Ultrafast scientists who want an inexpensive option.
Protected Gold NIR-IR Coating
Our ER.4 protected gold coating is ideal for applications requiring broadband reflectance in the near IR to the far IR. A multilayer dielectric overcoat provides protection to the gold from the environment. Average reflectivity is greater than 96% from 650 – 1700 nm and greater than 98% from 1.7 – 2.0 µm.
